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ElasticSearch has some resiliency issues, which are well documented: https://www.elastic.co/guide/en/elasticsearch/resiliency/current/index.html https://www.ela

ElasticSearch has some resiliency issues, which are well documented: https://www.elastic.co/guide/en/elasticsearch/resiliency/current/index.html https://www.elastic.co/guide/en/elasticsearch/resiliency/cur... I've run into some weird issues in the past with data types changing by themselves, but it may have been user error: in any case being able to reindex from scratch fixed the problem.

craigching 7y ago
Just as an anecdote to the jepsen test findings, I’ve used elasticsearch at two jobs as a primary datasource and haven’t had data loss as mentioned in the tests. The tests are, at this point, pretty old and I’ve found that newer versions are pretty good at controlling data loss. As a counterpoint, mongo also still has some outstanding issues with jepsen tests, but they are working on being compliant. Honestly, as far as resiliency, I’m not sure either has solved the problem perfectly.